Stephen c



(No Model.)

S. G. WILCOX.

. LAMP WIOK TUBE.

No. 346,570. Patented Aug. 3, 1886.

NVitqesses: Inveqtgf V tt lqey N, PETERS. Pholo-Ldhographar. Waihmglun,u. c.

UNITED STATES PATENT OFFIQE.

STEPHEN C. \VILCOX, OF DUBUQUE, IOYVA, ASSIGNOR OF ONE-THIRD TO \VALKER8s RHEMBERG, OF SAME PLACE.

LAM P-WICK TUBE.

EBPECIFIGATION forming part of Letters Patent No. 346,570, dated August3, 1886.

Serial No. 192,003. (No model.)

To all whom it may concern.-

Be it known that I, STEPHEN G. WILooX, of Dubuque, in the county ofDubuque and State of Iowa, have invented a new and useful Improvement inLamp-Vick Tubes; and I do hereby declare that the following is a fulland exact description of the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

My invention relates to an improved lampwick tube, particularly intendedfor use in connection with the wicks forming the subject-matter of anapplication of mine filed of even date herewith, and bearing the serialnumber 182,002; and it consists in a tube made thickest at the centerand sharp at the corners, and in the combination of a wick and tubehaving this peculiarity of construction, whereby the circulation of theoil is lessened at the edges and increased at the center of the wick,and the capillary attraction is made greater at the latter point, andproduces a flame which is thick and high at the center and thin andshort at the corners, contrary to the flame produced by the ordinaryilat wick and tube.

In the accompanying drawings, which fully illustrate my invention,Figure 1 represents in cross-section several different forms of thewick-tube, but all of the same general construction; and Fig. 2similarly represents several forms of the wick as used, respectively,with these tubes, and described and illustrated in the applicationreferred to. i

The various modifications of the wick-tube embraced in Fig. 1 are, asshown in cross-section, wide at the center, with the sides tapering tothe corners, where they meet and join, like unto the apex of an angle.Of these various forms, 2) denotes a wick-tube whose sides are convexfrom corner to corner, and which is the construction preferred by me.With such atube is to be used the wick b, which is of the same shape incross-section as shown in Fig. 2. The sides of the tube 0 are convex atthe center only,while the balance out to the corners is made concave,like the wick c, which is to be used with a tube of this construction.The sides of the tube d are concave from the center to the corners, toadapt itself to the shape of the wick d, and the sides of the tube 6 arestraight, and taper regularly from the center inward and outward to thecorners,

like the wick e, which is to be used with a k tube of this construction.

In combining a lamp-wick and tube, each made wider at the center than atthe outer perpendicular edges, and of a corresponding shape to fit eachother properly, the oil is caused to circulate more freely up throughthe center of the wick than up through the edges of the same, and, theburning-surface being reduced at the edges, the lame produced will bethick and high at the center and thin and short at the corners, and willbe more round and even in outline than the lame produced by the ordinarycombined flat wick and tube.

\Vhat I claim, and desire to secure by Letters Patent, is-

1. The combination of a solid la1npwick and a tube for the same, eachmade thickest at the center, sharp at the edges, and corresponding inshape throughout, substantially as described and shown.

2. The combinatiou,with a solid lamp-wick, made in cross-sectionthickest at the center and tapering to the edges, which are sharp, of atube for the same, of corresponding shape and size, substantially as andfor the purposes set forth.

3. The combination, with a solid lamp-wick having convex sides and sharpedges, of a wick-tube with convex sides and sharp corners, substantiallyas described, shown, and for the purposes set forth.

In testimony whereof I affix my signature inpresence of two witnesses.

STEPHEN O. \VILGOX.

\Vitnesses:

JOHN L. BUETTEL, MONROE llI. CADY.

